VS 2008 Object Reference Within <Extension()>?

Jul 30, 2009

I am toying around with extension methods here and have run into a snag adding an extension method to the textbox control.

<Extension()> _
Public Sub InvertMono(ByRef t As TextBox)
Select Case t.BackColor
Case Color.White

[code]....

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VS 2008 - Error : Reference To A Non-shared Member Requires An Object Reference

May 8, 2010

I get this error:Reference to a non-shared member requires an object reference.When i compile on the following code section:

Private Sub statusBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs)
ToolStripMenuItem.Checked = Not ToolStripMenuItem.Checked
statusStrip1.Visible = ToolStripMenuItem.Checked

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VS 2008 Reference To A Non Shared Member Requires An Object Reference

Jul 7, 2009

[Code]...

I am using this exact code on another form in the same project without an issue, just with a different data source. Any ideas?

EDIT: Never mind, seems like it was a stupid naming scheme and VS was adding a bindingsource with a different name than I wanted.

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VS 2008 Reference To A Non-shared Member Requires An Object Reference?

Feb 8, 2012

I have two forms form one have one listbox and one checkedlistbox and form2 have only checkedlistbox

on form one checkedlistbox is being updated by listbox_SelectedIndexChanged.

how can update checkedlistbox on form 2 when listbox_SelectedIndexChanged on form1

when i use form2.checkedlistbox.BeingUpdate()

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VS 2008 - Error With Arraylist In My.Settings - Object Reference Not Set To An Instance Of An Object

Mar 14, 2010

The issue is when I try to add a new item to the ArrayList with the following code, it gives me an error:

vb Private Sub btnLabelAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLabelAdd.Click
Dim result As String = InputBox("New Filter Label:", "Label List")

[CODE]................

Object reference not set to an instance of an object.

I'm not really sure what I'm supposed to be doing with this. It's a new setting I just added and it's empty, so I'm not sure if that has anything to do with it or not. Anyone know what's going on and what needs to be done to get it to accept a value and not want to be "initialized"?

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VS 2008 Error - System.NullReferenceException: Object Reference Not Sent To An Instance Of An Object

Oct 23, 2009

I have recently gotten my hands on a free, open-source IMAP connection API.So far, I have been successful in creating a connection to one of my accounts.Where I'm getting stuck is retrieving folders and/or emails from those folders.Does there happen to be anyone here that is familiar with this API, or even Gmail (particularly the folder structure for IMAP)?

If not, here is a link to the DLL that is listed on sourceforge and the company's website that created it (if you feel like testing):

Koolwired
Sourceforge - Koolwired API

I have created a test account so feel free to use the code below without worrying about username/password issues; I'll just delete it when I'm done with it.Here is the code I have made so far for making a connection:

Dim gSession As New Koolwired.Imap.ImapConnect("imap.gmail.com", 993, True)
Dim gAuthenticate As New Koolwired.Imap.ImapAuthenticate(gSession, "imap_test@serysoft.com", "imap_test")
Try

[code]....

When I run that code, I get an error that states:System.NullReferenceException: Object reference not sent to an instance of an object. (The bold line in the above code).

Now, I'm not sure exactly what that means. Does that mean it tried to access the server and "INBOX" doesn't exist so it gets returned a NULL value? Or is it possibly the coding itself?Maybe the Gmail folder system is weird due to the fact they use labels (even though from what I have read online, the labels act as the folders in the IMAP system).

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VS 2008 FindControl - Error : Object Reference Not Set To An Instance Of An Object

Sep 15, 2010

What is the problem in below code.

d Public Sub filltextbox(ByVal dlist As String) Dim tb As TextBox = CType(Page.FindControl(dlist), TextBox) tb.Text = "hello" End Sub

Error : Object reference not set to an instance of an object.

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VS 2008 System.NullReferenceException: Object Reference Not Set To An Instance Of An Object?

Apr 26, 2011

look after the error i'm having.

module1.vb
Imports System.Data.SqlClient
Module dbconn

[code]....

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VS 2008 : Error - Object Reference Not Set To An Instance Of An Object

Dec 5, 2010

I create one function to run any select query. and return the OdbcDataReader type.But some time if there is no data it through error : Object reference not set to an instance of an object I need to know how i can control if there is no data.

Public Function Select_From_AnyTable(ByVal sqls As String, ByVal ConStr As String) Dim conn As OdbcConnection conn = New OdbcConnection(ConStr) Dim cmd As OdbcCommand = conn.CreateCommand() conn.Open() cmd.CommandText = sqls Dim reader As OdbcDataReader = cmd.ExecuteReader While reader.Read() Return reader End While conn.Close() End Function Dim ei As OdbcDataReader = Select_From_AnyTable("SELECT loginname from usertable limit 1", conStr) msgbox(ei.item("loginname "))

If there is data it work well but if no record found it through the error.

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VS 2008 Error : Object Reference Not Set To An Instance Of An Object

Mar 21, 2010

Like every other program that you make when you code a button to open the next form it should open right. Well not in my case. I don't understand the problem that Visual Basics is not seeing my next form that I'm trying to open. When its in the Solution Explorer plain as day. Error below.An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object.show is not set to a object. All its doing is opening the next form. Ive use this code over an over. Now its giving me this C.O.S. error.

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VS 2008 Error: Object Reference Not Set To An Instance Of An Object

Nov 16, 2010

Basically all I am trying to do is to insert data entered in a text box(description) on the application form into database(sql2008) in vb.net. The vb code I wrote is below:

vb.net
Protected Sub Save_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Save.Click
Dim note As String = Description.Text

[code]....

However when I click on save button, I get following message:

System.NullReferenceException: Object reference not set to an instance of an object.

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VS 2008 Error: Object Reference Not Set To An Instance Of An Object?

Nov 30, 2010

What in this code might be causing this??This part of the code is Hilighted as causing the error.

My.Settings.Item(Holiday_" & i) = DirectCast(Me.Controls("ComboBox" & i.ToString), ComboBox).SelectedItem
Public Sub btn_Update_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)

[code].....

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VS 2008 Object Reference Not Set To An Instance Of An Object?

Mar 29, 2012

I am trying to clear a dataset in case it has some data already in so that I can add data to it to search a database, but when I run the program and get to the point that it tries to clear the dataset I get this error message "Object reference not set to an instance of an object", here is my

dtasetUser.Tables("tblUsers").Clear()Also I get an error "The 'Microsoft.ACE.OleDB.12.0' provider is not registered on the local machine" when trying to fill the same dataset, on searching I have found it is because I am trying to open a 2010 Access document in VB08, but I have no idea how to remedy this and any instructions I have seen make no sense to me, so I would like help with that too please.

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[2008] Object Reference Not Set To An Instance Of An Object

Nov 21, 2010

I'm trying to make a search textbox bring up certain records in a DataGrid. This is my code for that function:

Public Function Find(ByVal StrSearchString As String) As Boolean
DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect
Dim intcount As Integer = 0
For Each Row As DataGridViewRow In DataGridView1.Rows

[code]....

The problem comes on this line:

If DataGridView1.Rows(intcount).Cells(0).Value.ToString = StrSearchString Then

I can't figure out what the unhandled exception is. Any ideas? I'm sure it's something very simple I'm overlooking.

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Cast A Reference To An Object To A Reference To An Object Of The Same Class?

Mar 17, 2012

The book "Beginning ASP .NET 4 in VB 2010" contains the following:NOTE: TaxableProduct inherits from Product.You can also cast in the reverse directionfor example, cast a Productreference to a TaxableProduct reference. The trick here is that this

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VS 2008 - Error, "Object Reference Not Set To Instance Of An Object"

Jun 11, 2012

Currently using Vb 2008 express edition i was trying to complete the tutorial on databases found here [URL] but i ran into the error, "Object reference not set to instance of an object" no one at school seems to know what i can do and they aren't experiencing this problem. i took a screenshot of the problem, it occurred when i was trying to navigate through the database. [URL]

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Object Reference Error "Object Reference Not Set To An Instance Of An Object"?

Aug 26, 2011

I have this bit of code

Private Sub SpellChkMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SpellChkMenuItem.Click
Dim activeRichTextBox = TryCast(Me.ActiveControl, RichTextBox)
'clsFS.CheckSpelling(activeRichTextBox)[code]....

When I am in the rtb and click on spell check button it tells me the error "Object reference not set to an instance of an object." On this line

SpellChecker.Text = activeRichTextBox.Text

But it is suppose to be getting the focused rtb correct? So why is it not referenced

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Vb 2008 Error With Object Reference Using SqlClient

May 7, 2010

Error thrown. "Object not set to an instance..." at line where you see **.

[Code]...

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VS 2008 Object Reference Error On A Counter?

Dec 22, 2009

Under normal circumstances I am not TOO bad at trying to figure errors out. However, I can't seem to understand why I am getting the age ol' "Object reference not set to an instance of an object error" in this lil bit of code.

This is where I define my 'intTotalRecords'
Connection.Open()
Command.CommandText = "SELECT * FROM CompanyTable"

[code].....

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Doesn't C# Extension Methods Allow Passing Parameters By Reference?

Aug 11, 2009

Is it really impossible to create an extension method in C# where the instance is passed as a reference?

Heres a sample VB.NET console app:
Imports System.Runtime.CompilerServices
Module Module1

[code].....

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Error, "Reference To A Non-shared Member Requires An Object Reference

Nov 28, 2010

I am receiving this error: Reference to a non-shared member requires an object reference on the code I've
bolded within the code body. Here is my code:

[Code]...

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VS2010 : Error: Reference To A Non-Shared Member Requires A Object Reference

Jun 20, 2011

when I do something like this: Process.Start [URL] it says that error only on Form2 not Form1.

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Error 'Reference To A Non-shared Member Requires An Object Reference'

Jul 23, 2009

Error 'Reference to a non-shared member requires an object reference'?I want to know what a non-shared member is.

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Error - Reference To A Non-shared Member Requires An Object Reference

Dec 7, 2010

I am opening frmB (variable for FormB - the actual form) from frmA. From btn1 I open frmB like this:

frmB = New FormB()
frmB.Show()

From btn2 (frmB is already open) I bring frmB to the front from behind frmA:

FormB.Show()
FormB.BringToFront().

No problem so far. Now I need to pass an arg to frmB. This is where I am having the problem.

from btn1 (in frmA) I do this:

frmB = New FormB(myArg) '--pass myArg to constructor of FormB -- no problem here
frmB.Show()

then from btn2 -- this is where I have the problem

FormB.Show()
FormB.BringToFront()

I tried placing myArg in FormB.Show(myArg) but that did not fix the problem. What is the correct way to pass myArg to FormB (frmB) in this scenario? Do I need to share FormB or frmB? How do I do this? "frmB" is frmA level variable.

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Error : Reference To A Non-shared Member Requires An Object Reference

Sep 22, 2009

why i am getting an "reference to a non-shared member requires an object reference" error on format.Yesterday gets the previous days date and presents it in a yyyyMMdd format.vsettlementDates takes the "Yesterday value and requests data from it.

Dim Yesterday As String = format(Today.AddDays(-1), "yyyyMMdd")
Dim vSettlementDates As String = (Yesterday)

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Error Reference To A Non-shared Member Requires An Object Reference

Apr 27, 2011

I am getting the following error:

Error 1 Reference to a non-shared member requires an object reference. (on WindowsIdentity.Groups)

Here's my code from that uses the WindowsIdentity.Groups property to display the identity references for the groups the current user belongs to. This code is part of a larger example provided for the WindowsIdentity class.

Public ReadOnly Property Groups As IdentityReferenceCollection
Get
Dim irc As IdentityReferenceCollection

[Code].....

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Error Reference To A Non-shared Member Requires An Object Reference?

Dec 13, 2009

" GridView1.datasource = _MyUsers.Reference to a non-shared member requires an object reference." error. WHat's wrong with this code

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

[code]......

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Error: Reference To A Non Shared Member Requires An Object Reference

Jul 22, 2011

I have the following code below, how the line where it says : For Each c As councillor In councillorList i get the error: reference to a non shared member requires an object reference. Can someone please advise where i am going wrong? [Code]

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Error:Reference To A Non-shared Member Requires An Object Reference

Apr 6, 2012

Alright, so im getting this error:Reference to a non-shared member requires an object reference.This is the bit of code the error is pointing to:My.Settings.Bookmarks.Add(WebBrowser.Url.ToString)Why is it giving me this error?Its saying WebBrowser.Url is the problem.

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Errors Reference To A Non-shared Member Requires An Object Reference

Aug 23, 2011

im sure it is something really simple. Im by no means comfortable with VB. The below code is not mine but i have altered it for my needs. However im getting a couple of errors.

Reference to a non-shared member requires an object reference. I have underlined the errors in the code and they all refer to the above description

[Code]...

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